# whatwatt vs EW Sennwald

The clearest difference is update cadence: whatwatt at every 2 weeks against EW Sennwald's every 3 months. EW Sennwald's advantage is iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

whatwatt ships an update every 2 weeks, EW Sennwald every 3 months. The most recent releases landed on November 4, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | whatwatt | EW Sennwald |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/whatwatt/id6740263482/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 3 months |
| Monetization | Free | — |
| Size | 53 MB | 66 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [whatwatt AG](https://appshunter.io/developer/1789292734) | [EVUlution AG](https://appshunter.io/developer/1599699539) |

## What reviewers say

### whatwatt

[App page](https://appshunter.io/ios/app/whatwatt/id6740263482)

This utility app is preparing for future enhancements. Developers are working on new functionalities that will be revealed soon.

**Highlights:** Future feature groundwork, Upcoming enhancements, Developer updates

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### EW Sennwald

[App page](https://appshunter.io/ios/app/ew-sennwald/id6746044354)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is whatwatt free?

whatwatt is free to download, with no in-app purchases.

### Is EW Sennwald free?

EW Sennwald is free to download, with no in-app purchases.

### Do whatwatt or EW Sennwald have ads?

Neither whatwatt nor EW Sennwald shows ads.

### Which is updated more often, whatwatt or EW Sennwald?

whatwatt ships an update every 2 weeks, and EW Sennwald every 3 months. Most recently, whatwatt was updated on November 4, 2026 and EW Sennwald on November 5, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*